Table 1: Details of the parts used in
the Peppytide model
|
Part-name
|
Subparts
|
Description
|
Weight (g)
|
Total (g)
|
|
Amide unit
|
3D printed amide group
|
ABS plastic
|
4.53
|
5.47
g
|
|
2 H-bond Neodymium rod magnets
|
For O and H; 3/16"D x 1/8"H; pull force = 2.49 lbs.
|
|
5 Neodymium rod magnets
|
Neodymium rod magnets. For
representing rotational barriers in dihedrals (3 for phi; 2 for psi); 1/8"D x 1/8"H; pull force = 1.43 lbs.
|
0.94 (0.19
each)
|
|
Amide total =
|
|
|
|
Alpha-carbon unit
|
3D printed alpha-carbon unit
|
ABS plastic
|
3.04
|
3.78
g
|
|
4 Neodymium rod magnets
|
Neodymium rod magnets. For
representing rotational barriers in dihedrals (2 for phi; 2 for psi); 1/8"D x 1/8"H; pull force = 1.43 lbs.
|
0.74 (0.19
each)
|
|
Ca total =
|
|
|
|
Covalent Bonds (3 bonds to
connect the alpha carbon to 2 amides, and one side chain residue)
|
3 Screws
|
Pan-head machine screw 5/8"H, 4-40 thread
|
1.22 (each bond)
|
3.66
g
|
|
3 Nuts
|
Machine screw nuts; 3/32"H, 0.25"D, 4-40
thread
|
|
3 Spacers
|
Nylon spacer; 0.25"D x 3/8"H
|
|
3
bonds total =
|
|
|
|
Methyl group Unit
|
3D printed part
|
ABS plastic
|
2.68
|
2.68
g
|
|
Methyl
group total =
|
|
|
|
1 complete monomeric subunit
(1 amide, 1 Ca, 1 methyl
group, 3 bonds)
|
15.59
|
15.59
g
|
|
Monomer
subtotal =
|
|
|
|
An alanine 9-mer Peppytide
model
|
140.31
|
140.31
g
|
|
Model
total =
|
|
|
Table 2: Parts and
suppliers we used
|
Part
|
Supplier
|
Part Number
|
|
uPrint Plus Model Material, P430
Color Model Material Spools (each 30 cu. in) – Package of 5 (red, blue,
black, ivory)
|
Dimension (Paton Group)
|
340-21200
|
|
uPrint P400-SR Soluble Support
Material (each 30 cu. in) – Package of 5
|
Dimension (Paton Group)
|
345-20005
|
|
Screw
|
McMaster-Carr
(mcmaster.com)
|
91735A109
|
|
Nut
|
91841A005
|
|
Spacer
|
94639A202
|
|
Magnet (rotational barrier)
|
Magcraft
|
NSN0658
|
|
Magnet (H-bond)
|
K&J Magnetics, Inc.
(kjmagnetics.com)
|
D32-N52
|
|
|